Garen has understood the question, yet let's clarify the function:
Thus DonE has set his fuel on his EFI to run 6-8% leaner at the higher post-intercooler engine inlet temperatures due to the CHANGE - the decreased density of the incoming air.

Now keep in mind that EFI CAN adjust FOR that difference........I speak of the temperature difference *by itself* here.....90 degrees vs 140.

Thus the original question:
Air density as a function of temperature? (and also humidity) -